Schools that have purchased the existing ESP programs Crossword Challenge and Beat the Clock, can order supplementary data to install on their network or computers, which slots into the program and updates it with 20 themed lexical sets for each level (1200 words and phrases in all) to add at the touch of a button.

Likewise, schools that have purchased Word Invaders can order more data (150 sets of four words + feedback for each level; 600 words and phrases in all) to add to the program quickly and easily.